User Guide - Windows 7

Component Description
CAUTION: To prevent an unresponsive system, replace
the wireless module only with a wireless module
authorized for use in the computer by the governmental
agency that regulates wireless devices in your country or
region. If you replace the module and then receive a
warning message, remove the module to restore computer
functionality, and then contact support. To access Help
and Support, select Start > Help and Support.
(5) SIM connector Supports a wireless subscriber identity module (SIM). The
SIM connector is located under the service door.
14 Chapter 2 Getting to know your computer